(ASM_OUTPUT_MI_THUNK): Define.

From-SVN: r13750

gcc/config/m68k/linux.h

 /* Definitions for Motorola 68k running Linux with ELF format.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -354,3 +354,30 @@ do {									\
      : "d" (_beg), "d" (_len)						\
      : "%d0", "%d2", "%d3");						\
 }
+
+/* Output code to add DELTA to the first argument, and then jump to FUNCTION.
+   Used for C++ multiple inheritance.  */
+#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION)	\
+do {									\
+  if (DELTA > 0 && DELTA <= 8)						\
+    asm_fprintf (FILE, "\taddq.l %I%d,4(%Rsp)\n", DELTA);		\
+  else if (DELTA < 0 && DELTA >= -8)					\
+    asm_fprintf (FILE, "\tsubq.l %I%d,4(%Rsp)\n", -DELTA);		\
+  else									\
+    asm_fprintf (FILE, "\tadd.l %I%d,4(%Rsp)\n", DELTA);		\
+									\
+  if (flag_pic)								\
+    {									\
+      fprintf (FILE, "\tbra.l ");					\
+      assemble_name							\
+	(FILE, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (FUNCTION)));	\
+      fprintf (FILE, "@PLTPC\n");					\
+    }									\
+  else									\
+    {									\
+      fprintf (FILE, "\tjmp ");						\
+      assemble_name							\
+	(FILE, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (FUNCTION)));	\
+      fprintf (FILE, "\n");						\
+    }									\
+} while (0)